Device Side Pin Assignments-Male Db9; Male Db25 (Cbl-M78M25X8-100) - Moxa Technologies PCI Express Board User Manual

PCI Express Boards
Device Side Pin Assignments—Male DB9
PIN RS-232
1 DCD
2 RxD
3 TxD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS

Male DB25 (CBL-M78M25x8-100)

PIN RS-232
2 TxD
3 RxD
4 RTS
5 CTS
6 DSR
7 GND
8 DCD
20 DTR
RS-422/RS-485-4W RS-485-2W
TxD-(A) –
TxD+(B) –
RxD+(B) Data+(B)
RxD-(A) Data-(A)
GND GND
– –
– –
– –
RS-422/RS-485-4W
RxD+(B)
TxD+(B)
–
–
–
GND
TxD-(A)
RxD-(A)
RS-485-2W
Data+(B)
–
–
–
–
GND
–
Data-(A)
6-14
Pin Assignments